I have drawn the following membrane counter flashing details for membrane terminations at concrete curb walls. Each of these details are acceptable solutions. The sprung locked flashing fit into the concrete block out is the preferred option because it does not rely on sealant. Another option is to cast the flashing into the concrete creating no sealant required and eliminating the need to maintain the sealant joint.
The other flashing with the gumlip seal offers a cheap effective solution with a sealant joint that is easily inspected and therefore maintained.
Tell me what you think?
The drawings on the Left is a depiction of a notched concrete wall with spring locked counter-flashing and the right is a depiction of a sheet metal flashing termination with gumlip seal.
No comments:
Post a Comment